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          Institute: MPI für Physik     Collection: MPI für Physik     Display Documents



ID: 543265.0, MPI für Physik / MPI für Physik
Energy dependence of Lambda and Xi production in central Pb+Pb collisions at 20A, 30A, 40A, 80A, and 158A GeV measured at the CERN Super Proton Synchrotron
Authors:NA49 Collaboration; Alt, C.; Eckardt, V.; Schmitz, N.; Seyboth, P.; et al.
Date of Publication (YYYY-MM-DD):2008
Title of Journal:Physical Review C
Journal Abbrev.:Phys.Rev.C
Issue / Number:78
Start Page:034918
Audience:Not Specified
Intended Educational Use:No
Abstract / Description:Results on $\Lambda$, $\bar{\Lambda}}$, $\Xi^{-}$, and $\bar{\Xi}^{+}$ production in central Pb+Pb reactions at 20A, 30A, 40A, 80A, and 158A GeV are presented. The energy dependence of transverse mass spectra, rapidity spectra, and multiplicities is discussed. Comparisons to string hadronic models (UrQMD and HSD) and statistical hadron gas models are shown. While the latter provide a reasonable description of all particle yields, the first class of models fails to match the $\Xi^{-}$, and $\bar{\Xi}^{+}$ multiplicities.
Classification / Thesaurus:NA49
Comment of the Author/Creator:16 pages, 16 figures. Finally published version after editorial revision
External Publication Status:published
Document Type:Article
Communicated by:N.N.
Affiliations:MPI für Physik
Identifiers:LOCALID:MPP-2008-221
URL:http://www.slac.stanford.edu/spires/find/hep/www?r...
URL:http://arXiv.org/abs/arxiv:0804.3770
URL:http://publications.mppmu.mpg.de/?action=search&mp...
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